What requires a building permit in Washington County Utah?

In Washington County, permits are required for new construction, additions, pools, retaining walls over 4 feet, sheds over 200 square feet, electrical/plumbing/mechanical work, roofing, demolition, and grading that affects drainage. Requirements may vary by city.

Do I need a permit to build a shed in St. George?

In St. George, sheds under 200 square feet that are not on a permanent foundation generally do not require a building permit. Sheds over 200 square feet, or any structure with electrical or plumbing, require a permit. Check setback requirements before building.

Do I need a permit to build a fence in Washington County?

Most cities in Washington County do not require a permit for residential fences under 6 feet tall. Fences over 6 feet, fences in front yards, and fences near intersections may require permits or have specific restrictions. Always check with your local building department.

How do I apply for a building permit in Washington County?

Contact your city's building department (St. George, Hurricane, Washington, Ivins, etc.) to determine requirements. Most cities accept applications in person or online. You'll need site plans, construction drawings, and sometimes engineered plans depending on the project.

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Permits

Washington County Building Permit Guide

Complete guide to construction permits and requirements in Southern Utah.

8 min read

January 16, 2026

Washington County building permit requirements guide.

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Washington County Building Permit Guide

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